Re: [PATCH net-next 11/12] ipvlan: Ignore PACKET_LOOPBACK in handle_mode_l2()

[Paolo Abeni]

On 11/20/25 6:49 PM, Dmitry Skorodumov wrote:
> Packets with pkt_type == PACKET_LOOPBACK are captured by
> handle_frame() function, but they don't have L2 header.
> We should not process them in handle_mode_l2().
> 
> This doesn't affect old L2 functionality, since handling
> was anyway incorrect.
> 
> Handle them the same way as in br_handle_frame():
> just pass the skb.
> 
> To observe invalid behaviour, just start "ping -b" on bcast address
> of port-interface.
> 
> Signed-off-by: Dmitry Skorodumov <skorodumov.dmitry@xxxxxxxxxx>

Again, this looks like a fix suitable for 'net'.

Also the condition described above looks easily reproducible, you should
add a specific self-test.

/P